Oil-filter



G. DORN. oIL FILTER.

(N0 Medel.)

Patented May 3, 1898.

A UNITED STATES( PATENT l OFFICE.

CHRISTIAN DORN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO I-IARLEM P. HESS, OF EASTON, PENNSYLVANIA.

OIL-FILTER.

SPECIFICATION forming part of Letters Patent N o. 603,587, dated May 3, 1898.

Application led July 28, 1897. z Serial No. 646,244. (No model.)

To @ZZ whom, t may concern/.-

Be it known that I, CHRISTIAN DOEN, a citizen of the United States, residin g at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Oil-Filters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in oil-filters; and it consists in the novel construction and arrangement hereinafter described and claimed.

My invention will be understood by reference to the accompanying drawings, wherein the same parts are indicated by the same letters throughout both views.

Figure l represents a side elevation of an oil-filter constructed according to my invention, and Fig. 2 represents a central vertical section throughthe same.

The body of the filter comprises an outer shell or casing A, having a partition A' therein which closes one portion of the inside of the shell A completely, forming a chamber A and leaving another chamber A00 with an enlarged upper end, as shown in Fig. 2. In the lower portion of the chamber A00 are mounted two wire sieves B and B2, the lower sieveB being preferably flat, while the upper sieve B2 is in the form of an inverted basin. These two sieves are arranged a short distance from each other, and the space between the two is filled with small particles of cork or other suitable filtering material C, as seen in Fig. Within the upper part of the chamber A00 is iitted a funnel D, having a tube or pipe D leading from its bottom downward through the sieves B and B2 and through the filter material and terminating immediately beneath the lower sieve B in a iiaring mouth D2. Another wire sieve D0is provided in the funnel D to catch particles' of foreign matter that may fall therein and would be liable to choke the tube or pipe D.

A drain-cock L00 is itted into the shell A at the bottom of said chamber A00, below the sieve B, to drain the oil from said chamber when desired, and a plug 600 is fitted into the shell A, just above the upper sieve B2, to allow access to the said upper sieve for cleaning or other purposes.

' Apipe or tube E leads from the chamber A00 by an opening in the partition A through the chamber A0 slightly downward to the outer shell A, as seen in Fig. 2. Into the'outer end of this pipe or tube Eis iitted a plug E', provided with a screw-valve e' therein for opening and closing said plug. A second plug F is itted into an opening in the shell A a short distance above the plug E', and this second plug is also provided with a screw-valvef and is connected to the plug E by means of a glass tube G, into the lower end of which vglass tube projects a nozzle e2 on the plug E',

as seen in both the figures of the drawings. A third plug I'I is iitted into an opening in the shell A, just below the plug E', and alsocommunicates with the said plug E and is provided with a screw-valve h. A draincock I-I is'tted into the lower side ofthe plug H', as shown. A drain-cock a0 is fitted into the shell A at the lower portion of the chamber A0 for emptying said chamber when desired.

A short tube A2 is fitted in openings through the upper portions of the funnel D and the partition A', through which Water may be poured into the chamber A0, and an air-vent a2 is provided through the shell A at the upper portion of the said chamber, as seen in Fig. 2.

A pair of plugs I and I/, provided with screw-valves c' and t" and connected by a sight-glass I0, are fitted into the outer. shell A outside of the chamber A0, so that the amount of oil in the chamber A0 may be readily seen from the outside when the valves in said plugs are open.

K represents a cock for drawing off the filtered oil from above the water in the chamber A0, and L represents a shelf or bracket which may be mounted upon the outer shell A, beneath the cock K, for resting a vessel upon While filling from the cock II.

The operation of the filter is as follows: The plugs H and F' being open and the plug E closed water is poured into the chamber A0 through the tube A2 until it rises almost to the top of the sight-glass G. The crude oil is poured into the funnel D and passes IOO downward through the tube D and ilters upward through the strainers B and B2 and the filtering material C between them, rising in the chamber A00. When the filtered oil has risen in the chamber A00 above the outlet-pipe E, the plug E' in the outer end of said pipe may be opened, when the iiltered oil will pass through said plug E', and escaping through the nozzle e2 will rise in drops through the water in the sight-glass G, and if the filtered oil in the chamber A00 be high enough will pass by way of the plug F into the chamber A0, where it will float upon the water in said latter chamber, as will be' seen from'an inspection of Fig. 2 of the drawings.

The amount of oil in the chamber A0 will be indicated in the sight-glass I0, and the oil may be drawn o by the cock K into any suitable receptacle therefor as needed for use.

It will be seen that the operation ofthe lter after once being started may be continuous by keeping the funnel D well lled with the unfiltered oil,which will gradually work its way downward through the pipe D' and will filter upward through the strainers and iilter-bed hereinbefore referred to.

The pressure of the oil through the downwardly-curved pipe E will prevent any water entering the chamber A00; but should any water enter such chamber it will settle in the bottom thereof and will not retard the action of the filter.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-I l. In an oil-lter, the combination with a chamber A00, a tilter in the lower part of the said chamber, and means for introducing the oil beneath the said filter; of a second chamber A0, means for introducing water in the said second chamber A0, a sight-glass opening into the said chamber A0 at two point-s, a pipe extending from the chamber A00 through thek said chamber A0, a valve adapted to open the said pipe int-o the said sight-glass, and means for drawing the oil oft from the water, substantially as described.

2. In an oil-filter, the combination with a chamber, a filter in the lower part of the said chamber, a funnel in the upper part of the said chamber, and a pipe from the said funnel extending through the said ilter; of a second chamber A0, means for introducing water in the said second chamber A0, a sightglass opening into the said chamber A0 at two points, a pipe extending from the chamber A00 through the said chamber A0, a Valve adapted to open the said pipe into the said sight-glass, and means for drawing the oil off from the water, substantially as described.

3. An oil-iilter comprising two chambers; a lter in the lower portion of oneof said chamJ bers; an inlet-pipe entering said chamber and discharging beneath said filter; a drain-cock to said chamber; a downwardly-inclined pipe leading through the second chamber from said first chamber, and opening outside of said second chamber; a plug in the outer end of said pipe; a second plug communicating with said second chamber above said first plug; a glass tube connecting said plugs; a third plug communicating with said second chamber below said first plug and also with said plug; an inlet-pipe to said second chamber; a cock for drawing oft the oil from said second chamber; and a sight-glass for showing the amount of oil in said chamber, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

A CHRISTIAN DORN.

Witihesses:

Jos. H. BLAcKwooD, JOHN C. WILSON. 

